After I put new tires on my '04 Santa Fe, I took it to Superior for an alignment. The alignment tech showed me that both lower ball joints were quite worn. He could shake the wheel back & forth when the front end was jacked up. He could still do the alignment when the weight of the car was on the ground as that centered the ball joints in the middle of the wear. I changed the lower control arms which gave me new ball joints and rubber bushings, not to mention nice, shiny control arms. :-) Quite a treat for a 234,000 mile SUV. When I came back, he re-did the alignment at no additional charge. It was close enough to need only minimal adjustment. Now it tracks straight & true on the new tires. Pirelli, by the way. PS Always a treat to talk with Suraj in the front office.